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All Journal International Journal of Electrical and Computer Engineering Journal of ICT Research and Applications
Erwin Sutanto
Biomedical Engineering, Faculty Of Science And Technology, Universitas Airlangga, Kampus C Unair Mulyorejo, Jalan Dr. Ir. H. Soekarno, Surabaya 60115, Indonesia
Computer Science & IT Electrical & Electronics Engineering

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Residual Current Measurement using Helmholtz Coil Configuration with different Current Flow Erwin Sutanto; Frangky Chandra; Eduardo Gonnelli; Suhariningsih Suhariningsih
International Journal of Electrical and Computer Engineering (IJECE) Vol 8, No 3: June 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (928.057 KB) | DOI: 10.11591/ijece.v8i3.pp1432-1441

Abstract

For leakage current safety, Residual Current Device (RCD) has been well known. The purpose of this work is to make the employment of low price components to measure residual current feasible and the Residual Current Device (RCD) must to be taken into account because it is a well known device for leakage current safety. For this purpose, experiments employing the Helmholtz Coil Configuration were performed with the different current flow. Furthermore, the residual current was formulated and simulated through the software Easy Java Simulation (EJS). The results showed that it is possible to move the magnet into different angles using leakage current with linear gradient as low as 0.382 degree/mA. Finally, it was proposed a way to increase the sensitivity and to reduce the hysteresis phenomenon.
Smart Card-based Access Control System using Isolated Many-to-Many Authentication Scheme for Electric Vehicle Charging Stations Wervyan Shalannanda; Fajri Anugerah P. Kornel; Naufal Rafi Hibatullah; Fahmi Fahmi; Erwin Sutanto; Muhammad Yazid; Muhammad Aziz; Muhammad Imran Hamid
Journal of ICT Research and Applications Vol. 17 No. 2 (2023)
Publisher : DRPM - ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.ict.res.appl.2023.17.2.8

Abstract

In recent years, the Internet of Things (IoT) trend has been adopted very quickly. The rapid growth of IoT has increased the need for physical access control systems (ACS) for IoT devices, especially for IoT devices containing confidential data or other potential security risks. This research focused on many-to-many ACS, a type of ACS in which many resource-owners and resource-users are involved in the same system. This type of system is advantageous in that the user can conveniently access resources from different resource-owners using the same system. However, such a system may create a situation where parties involved in the system have their data leaked because of the large number of parties involved in the system. Therefore, ‘isolation’ of the parties involved is needed. This research simulated the use of smart cards to access electric vehicle (EV) charging stations that implement an isolated many-to-many authentication scheme. Two ESP8266 MCUs, one RC522 RFID reader, and an LED represented an EV charging station. Each institute used a Raspberry Pi Zero W as the web and database server. This research also used VPN and HTTPS protocols to isolate each institute’s assets. Every component of the system was successfully implemented and tested functionally.
Co-Authors Eduardo Gonnelli Fahmi Fahmi Fajri Anugerah P. Kornel Frangky Chandra Muhammad Aziz Muhammad Imran Hamid Naufal Rafi Hibatullah Suhariningsih Wervyan Shalannanda Yazid, Muhammad